Peer Reviewed: The Role of State Health Departments in Supporting Community-based Obesity Prevention

Background

Recent national attention to obesity prevention has highlighted the importance of community-based initiatives. State health departments are in a unique position to offer resources and support for local obesity prevention efforts.

Community Context

In North Carolina, one-third of children are overweight or obese. North Carolina''s Division of Public Health supports community-based obesity prevention by awarding annual grants to local health departments, providing ongoing training and technical assistance, and engaging state-level partners and resources to support local efforts.

Methods

The North Carolina Division of Public Health administered grants to 5 counties to implement the Childhood Obesity Prevention Demonstration Project; counties simultaneously carried out interventions in the community, health care organizations, worksites, schools, child care centers, and faith communities.

Outcome

The North Carolina Division of Public Health worked with 5 local health departments to implement community-wide policy and environmental changes that support healthful eating and physical activity. The state health department supported this effort by working with state partners to provide technical assistance, additional funding, and evaluation.

Interpretation

State health departments are well positioned to coordinate technical assistance and leverage additional support to increase the strength of community-based obesity prevention efforts.     

Peer Reviewed: Child Care Provider Training and a Supportive Feeding Environment in Child Care Settings in 4 States, 2003

Introduction

Strategies to prevent adult chronic diseases, including obesity, must start in childhood. Because many preschool-aged children spend mealtimes in child care facilities, staff should be taught supportive feeding practices for childhood obesity prevention. Higher obesity rates among low-income children suggest that centers providing care to these children require special attention. We compared self-reported feeding practices at child care centers serving low-income children on the basis of whether they received funding and support from the Child and Adult Care Food Program (CACFP), which suggests supportive feeding practices. We also assessed training factors that could account for differences among centers.

Methods

Eligible licensed child care centers (n = 1600) from California, Colorado, Idaho, and Nevada received surveys. Of the 568 responding centers, 203 enrolled low-income families and served meals. We analyzed the responses of 93 directors and 278 staff for CACFP-funded centers and 110 directors and 289 staff from nonfunded centers. Chi square analyses, pairwise comparisons, t tests, and multiple linear regressions were used to compare CACFP-funded and nonfunded centers.

Results

Significant differences were noted in 10 of 26 feeding practices between CACFP-funded and nonfunded centers. In each case, CACFP-funded centers reported practices more consistent with a supportive feeding environment. Forty-one percent of the variance could be explained by training factors, including who was trained, the credentials of those providing training, and the type of training.

Conclusion

Our findings suggest that when trained by nutrition professionals, child care staff learn, adopt, and operationalize childhood obesity prevention feeding guidelines, thereby creating a supportive mealtime feeding environment.     

Peer Reviewed: A Midpoint Process Evaluation of the Los Angeles Basin Racial and Ethnic Approaches to Community Health Across the US (REACH US) Disparities Center, 2007-2009

Background

Racial/ethnic minority groups have higher risks for disease resulting from obesity.

Community Context

The University of California, Los Angeles, and the Los Angeles County Department of Public Health partnered with community organizations to disseminate culturally targeted physical activity and nutrition-based interventions in worksites.

Methods

We conducted community dialogues with people from 59 government and nonprofit health and social service agencies to develop wellness strategies for implementation in worksites. Strategies included structured group exercise breaks and serving healthy refreshments at organizational functions. During the first 2 years, we subcontracted with 6 community-based organizations (primary partners) who disseminated these wellness strategies to 29 organizations within their own professional networks (secondary worksites) through peer modeling and social support. We analyzed data from the first 2 years of the project to evaluate our dissemination approach.

Outcome

Primary partners had difficulty recruiting organizations in their professional network as secondary partners to adopt wellness strategies. Within their own organizations, primary partners reported significant increases in implementation in 2 of the 6 core organizational strategies for promoting physical activity and healthy eating. Twelve secondary worksites that completed organizational assessments on 2 occasions reported significant increases in implementation in 4 of the 6 core organizational strategies.

Interpretation

Dissemination of organizational wellness strategies by trained community organizations through their existing networks (train-the-trainer) was only marginally successful. Therefore, we discontinued this dissemination approach and focused on recruiting leaders of organizational networks.     

Peer Reviewed: A Community-Based Restaurant Initiative to Increase Availability of Healthy Menu Options in Somerville,Massachusetts: Shape Up Somerville

Background

Environmental factors at the community level may play a role in the development and maintenance of obesity. Because many US families frequently eat meals outside of the home, restaurants are an environmental factor that can affect their health. The purpose of this project was to test the feasibility of a community-based restaurant initiative that targets families and young children.

Context

Somerville, Massachusetts, is an ethnically diverse, densely populated city. Approximately 44% of elementary school children in Somerville are overweight or obese. The restaurant initiative described here was conducted as part of a larger community-based environmental intervention, Shape Up Somerville: Eat Smart, Play Hard (SUS), designed to improve energy balance by making small changes in all aspects of a child''s environment.

Methods

Restaurant initiative activities were establishing criteria for approval as an SUS restaurant; conducting brief one-on-one interviews with 15 restaurant owners and managers; recruiting restaurants; and monitoring and evaluating restaurants'' ability to adhere to the criteria, using questionnaires and site visits.

Consequences

Establishing approval criteria for restaurants required several iterations and ongoing flexibility. Barriers to participation included lack of time and interest and concerns about potential profit losses. The strategy of publicizing approved restaurants facilitated participation in the program. Twenty-eight percent of actively recruited restaurants participated in the initiative. Approximately one-half of restaurants fully complied with all approval criteria.

Interpretation

Despite limited feasibility, the initiative provided valuable visibility and branding of the intervention within the community as well as lessons for working with restaurants to improve health.     

Peer Reviewed: Child Care as an Untapped Setting for Obesity Prevention: State Child Care Licensing Regulations Related to Nutrition, Physical Activity, and Media Use for Preschool-Aged Children in the United States

Introduction

Child care is a potential setting for obesity prevention; 8.6 million preschool-aged children participated in child care in 2001. Each US state creates and enforces its own child care licensing regulations. We analyzed obesity-related child care licensing regulations of US states.

Methods

We downloaded state licensing regulations for children in child care centers (CCCs), small family child care homes (SFHs), and large family or group child care homes (LFGHs) in each state and the District of Columbia (collectively referred to as "states") in 2006 from national and state Web sites. We conducted a quantitative content analysis to identify 13 coding dimensions related to nutrition, physical activity, and media use.

Results

We found variability among and within states. CCCs were the most heavily regulated and had the most specific regulations, followed by LFGHs. SFHs had the fewest and most general regulations. Just 2 states, Michigan and West Virginia, specified that CCC menus should be consistent with the Dietary Guidelines for Americans. Only 12 states had regulations that limited foods of low nutritional value in CCCs. Thirty-six states required that children have daily outdoor activity time in CCCs; only 9 states set specific minimum lengths of time that children should be outdoors each day. Eight states set quantified time limits on screen time per day or per week in SFHs.

Conclusion

Opportunities exist for strengthening state licensing regulations to prevent childhood obesity. The increasing prevalence of childhood obesity underscores the urgency for state policy efforts to create child care environments that foster healthful eating and participation in physical activity.     

Perception of Childhood Obesity in Mothers of Preschool Children

Objectives

The purpose of this study was to identify the perception of childhood obesity in mothers of preschool children using Q methodology.

Methods

A total of 38 Q statements about childhood obesity were obtained from 41 participants. The QUANL PC program was used to analyze the results.

Results

There were three types of perception toward obesity in mothers of preschool children: the “authoritative discipline type,” the “generous home meal focused type,” and the “home meal based on household financial situation type.”

Conclusion

The perception of mothers toward childhood obesity can affect the extent of maternal interaction with children or meal preparation for the family. Based on these results, it is necessary to plan specific programs according to the types of maternal perception toward childhood obesity.     

The Role of Parents in Public Views of Strategies to Address Childhood Obesity in the United States

Policy Points

• The American public—both men and women and those with and without children in the household—holds parents highly responsible and largely to blame for childhood obesity.
• High attributions of responsibility to parents for reducing childhood obesity did not universally undermine support for broader policy action. School-based obesity prevention policies were strongly supported, even among those viewing parents as mostly to blame for childhood obesity.
• Americans who viewed sectors outside the family (such as the food and beverage industry, schools, and the government) as helping address childhood obesity were more willing to support a wider range of population-based obesity prevention policies.

Context

The public''s views of parents’ behaviors and choices—and the attitudes held by parents themselves—are likely to influence the success of efforts to reverse obesity rates.

Methods

We analyzed data from 2 US national public opinion surveys fielded in 2011 and 2012 to examine attributions of blame and responsibility to parents for obesity, both among the general public and parents themselves, and we also explored the relationship between views of parents and support for obesity prevention policies.

Findings

We found that attribution of blame and responsibility to parents was consistently high, regardless of parental status or gender. Support for policies to curb childhood obesity also did not differ notably by parental status or gender. Multivariable analyses revealed consistent patterns in the association between public attitudes toward parents’ responsibility and support for policies to curb childhood obesity. High parental responsibility was linked to higher support for school-targeted policies but generally was not associated with policies outside the school setting. Attribution of greater responsibility to entities external to children and their parents (schools, the food and beverage industry, and the government) was associated with greater support for both school-targeted and population-based obesity prevention policies.

Conclusions

Our findings suggest that the high attribution of responsibility to parents for reducing childhood obesity does not universally undermine support for broader policy action. But appealing to parents to rally support for preventing obesity in the same way as for other parent-initiated social movements (eg, drunk driving) may be challenging outside the school setting.     

Peer Reviewed: Effect of a Multifaceted,Church-Based Wellness Program on Metabolic Syndrome in 41 Overweight or Obese Congregants

Introduction

A rise in obesity, poor-quality diets, and low physical activity has led to a dramatic increase in the number of Americans with metabolic syndrome and diabetes. Our objective was to determine the effect of a short-term, multifaceted wellness program carried out in a church setting on weight, metabolic syndrome, and self-reported wellness.

Methods

Forty-one overweight or obese adults in a church congregation provided fasting blood samples and answered a wellness questionnaire before and after completing an 8-week diet and exercise program. We also measured weight, body fat, body mass index, and waist and hip circumference.

Results

The intervention decreased weight, body fat, and central adiposity; improved indexes of metabolic syndrome; and increased self-reported wellness.

Conclusion

A multifaceted wellness intervention that emphasizes diet and exercise can rapidly influence weight, insulin resistance, metabolic syndrome, and self-reported wellness.     

Peer Reviewed: Retooling Food Service for Early Elementary School Students in Somerville,Massachusetts: The Shape Up Somerville Experience

Background

Changes in the school food environment are a logical target to prevent childhood overweight. We describe the food service component of a 2-year research intervention to prevent excess weight gain in children.

Context

The goals of the food service component were to improve the presentation and nutrient quality of school meals and to incorporate more fruits and vegetables into students'' diets. The project engaged food service staff, students, parents, teachers, and school leaders to improve school nutrition.

Methods

Modifications addressed needs and barriers identified though dialogue with the food service director, focus groups, key informant interviews, and surveys of school employees, students, and parents and guardians. Attitudes and behavior changes were measured through surveys, direct observation, and sales data.

Consequences

More fruits, vegetables, whole grains, and low-fat dairy products were available during the intervention years; menus and à la carte choices were brought into closer compliance with recommended guidelines for children; attitudes of students, parents and guardians, school faculty, and food service staff improved; and policies related to food service were adopted.

Interpretation

Strategic modification to improve nutrition and increase acceptability of the food served in schools is feasible and sustainable. These results demonstrate that changes to food service can lead to improved nutrient profiles and more favorable attitudes toward food served at school meals. Such changes can help prevent childhood obesity.     

Peer Reviewed: Reaching Staff,Parents, and Community Partners to Prevent Childhood Obesity in Head Start, 2008

Introduction

Lowering the prevalence of childhood obesity requires a multilevel approach that targets the home, school, and community. Head Start, the largest federally funded early childhood education program in the United States, reaches nearly 1 million low-income children, and it provides an ideal opportunity for implementing such an approach. Our objective was to describe obesity prevention activities in Head Start that are directed at staff, parents, and community partners.

Methods

We mailed a survey in 2008 to all 1,810 Head Start programs in the United States.

Results

Among the 1,583 (87%) responding programs, 60% held workshops to train new staff about children''s feeding and 63% held workshops to train new staff about children''s gross motor activity. Parent workshops on preparing or shopping for healthy foods were offered by 84% of programs and on encouraging children''s gross motor activity by 43% of programs. Ninety-seven percent of programs reported having at least 1 community partnership to encourage children''s healthy eating, and 75% reported at least 1 to encourage children''s gross motor activity.

Conclusion

Head Start programs reported using a multilevel approach to childhood obesity prevention that included staff, parents, and community partners. More information is needed about the content and effectiveness of these efforts.     

School Wellness Committees Are Associated With Lower Body Mass Index Z‐Scores and Improved Dietary Intakes in US Children: The Healthy Communities Study

BACKGROUND

Our objective was to examine the association between school wellness committees and implementation of nutrition wellness policies and children's weight status and obesity‐related dietary outcomes.

METHODS

A cross‐sectional study was conducted of 4790 children aged 4‐15 years recruited from 130 communities in the Healthy Communities Study. Multilevel statistical models assessed associations between school wellness policies and anthropometric (body mass index z‐score [BMIz]) and nutrition measures, adjusting for child and community‐level covariates.

RESULTS

Children had lower BMI z‐scores (?0.11, 95% confidence interval [CI]: ?0.19, ?0.03) and ate breakfast more frequently (0.14 days/week, 95% CI: 0.02‐0.25) if attending a school with a wellness committee that met once or more in the past year compared to attending a school with a wellness committee that did not meet/did not exist. Children had lower added sugar (p < .0001), lower energy‐dense foods (p = .0004), lower sugar intake from sugar‐sweetened beverages (p = .0002), and lower dairy consumption (p = .001) if attending a school with similar or stronger implementation of the nutrition components of the school wellness policies compared to other schools in the district.

CONCLUSIONS

A more active wellness committee was associated with lower BMI z‐scores in US schoolchildren. Active school engagement in wellness policy implementation appears to play a positive role in efforts to reduce childhood obesity.

     

Trends in Measures of Childhood Obesity in Korea From 1998 to 2012

Background

During the last several decades, the number of children who are overweight or obese has reached alarming levels worldwide. The purpose of the present study was to examine trends in measures of childhood obesity among Korean children aged 2–19 from 1998 to 2012.

Methods

Height, weight, and waist circumference (WC) were measured, and body mass index (BMI) was calculated. Age-adjusted means of WC and BMI were compared between years. We used three international criteria (International Obesity Task Force [IOTF], World Health Organization [WHO], United States Centers for Disease Control and Prevention [CDC]) and a Korean national reference standard (Korea Centers for Disease Control and Prevention [KCDC]) to calculate age-standardized prevalence of childhood overweight and obesity.

Results

Despite differences in absolute prevalence of childhood overweight and obesity according to the four different criteria, the time trends of prevalence were generally similar across criteria. The prevalence of childhood overweight and obesity generally stabilized from 2001–2012 in both boys and girls. WC decreased from 2001–2012 in both boys and girls aged 2–19.

Conclusions

Further studies exploring the factors causing plateaued trends of childhood obesity measures are needed to implement effective policies for reducing the prevalence of childhood overweight and obesity.Key words: body mass index, waist circumference, obesity, child, trends, Korea     

Peer Reviewed: Energy Balance Feasibility Study for Latinas in Texas: A Qualitative Assessment

Introduction

Obesity has reached epidemic levels, with nearly two-thirds of the U.S. population considered overweight or obese. Latinos have some of the highest rates of overweight, obesity, and sedentary lifestyle. Research from scientifically sound evidence-based interventions to reduce the disproportionate burden of obesity and its associated morbidity and mortality among Latinas is greatly needed. The purpose of this study was to assess knowledge, attitudes, and behaviors about nutrition and exercise among Latinas aged 40 years and older residing in a low-income community in Houston, Texas, and the applicability of an evidence-based church program to promote healthy energy balance.

Methods

Qualitative assessment was conducted through 10 focus groups with 75 women recruited through three Catholic churches, community groups, and leaders.

Results

Participants identified barriers and enabling factors to healthy nutrition and physical activity. Barriers included lack of awareness about nutrition and physical activity, cultural beliefs, and socioeconomic and environmental factors. Preferred strategies were group activities with direct guidance from qualified individuals and interpersonal contact among participants, social support with positive reinforcement for behavior change or maintenance, and a friendly environment for learning and achieving suitable goals. The church was considered a powerful resource to influence Latinas to improve their health, exercise, and nutrition practices.

Conclusion

Our findings suggest that using the church environment to reach Latina women aged 40 years and older is a feasible and culturally appropriate strategy. The church environment provides a safe, comfortable, and familiar atmosphere for women and addresses specific cultural barriers and safety concerns of family members.     

Peer Reviewed: Randomized Controlled Trial of a Mailed Toolkit to Increase Use of Body Mass Index Percentiles to Screen for Childhood Obesity

Introduction

Despite epidemic increases in childhood obesity rates, many providers fail to diagnose obesity. Body mass index (BMI)-for-age percentiles are the recommended screening test. We evaluated whether mailing a toolkit to physicians would increase use of sex-specific BMI-for-age percentiles to screen for childhood obesity.

Methods

We assigned a random sample of family physicians and pediatricians from New York State’s medical licensing database to either intervention or control groups in the summer of 2004. At baseline and at follow-up, we sent physicians a survey that asked how often they used various screening methods to identify childhood obesity. Between the surveys, we sent physicians in the intervention group a toolkit that consisted of professional guidelines for childhood obesity screening, a tool for calculating BMI, BMI-for-age growth charts, and educational information.

Results

At follow-up, more physicians in the intervention group than in the control group reported using BMI percentiles to screen for childhood obesity. Compared with physicians in the control group, physicians in the intervention group had a larger increase in their routine use of BMI percentiles to screen children aged 2 to 5, 6 to 11, and 12 to 20 years, although the differences in the older 2 groups did not attain statistical significance.

Conclusion

Directly mailing an educational toolkit to physicians can have a small but positive effect on clinical practice.     

Peer Reviewed: Family Structure and Childhood Obesity,Early Childhood Longitudinal Study — Kindergarten Cohort

Introduction

Little is known about the effect of family structure on childhood obesity among US children. This study examines the effect of number of parents and number of siblings on children''s body mass index and risk of obesity.

Methods

We conducted a secondary data analysis of the Early Childhood Longitudinal Study — Kindergarten Cohort (ECLS-K), which consists of a nationally representative cohort of children who entered kindergarten during 1998-1999. Our analyses included 2 cross-sectional outcomes and 1 longitudinal outcome: body mass index (BMI) calculated from measured height and weight, obesity defined as BMI in the 95th percentile or higher for age and sex, and change in BMI from kindergarten through fifth grade.

Results

Other things being equal, children living with single mothers were more likely to be obese by fifth grade than were children living with 2 parents (26% vs 22%, P = .05). Children with siblings had lower BMI and were less likely to be obese than children without siblings. We also found that living with a single mother or no siblings was associated with larger increases in BMI from kindergarten through fifth grade.

Conclusion

Children from single-mother families and, especially, children with no siblings are at higher risk for obesity than children living with 2 parents and children with siblings. These findings highlight the influential role that families play in childhood obesity. Additionally, they suggest that health care providers should consider the structure of children''s families in discussions with families regarding childhood obesity.     

Peer Reviewed: Changes in Local School Policies and Practices in Washington State After an Unfunded Physical Activity and Nutrition Mandate

Introduction

Policies and practices in schools may create environments that encourage and reinforce healthy behaviors and are thus a means for stemming the rising rates of childhood obesity. We assessed the effect of a 2005 statewide school physical activity and nutrition mandate on policies and practices in middle and high schools in Washington State.

Methods

We used 2002, 2004, and 2006 statewide School Health Profiles survey data from Washington, with Oregon as a comparison group, to create longitudinal linear regression models to describe changes in relevant school policies after the Washington statewide mandate. Policy area composite measures were generated by principal component factor analysis from survey questions about multiple binary measure policy and practice.

Results

Relative to expected trends without the mandate, we found significant percentage-point increases in various policies, including restricted access to competitive foods in middle and high schools (increased by 18.8-20.0 percentage points); school food practices (increased by 10.4 percentage points in middle schools); and eliminating exemptions from physical education (PE) for sports (16.6 percentage-point increase for middle schools), exemptions from PE for community activities (12.8 and 14.4 percentage-point increases for middle and high schools, respectively) and exemptions from PE for academics (18.1 percentage-point increase for middle schools).

Conclusion

Our results suggest that a statewide mandate had a modest effect on increasing physical activity and nutrition policies and practices in schools. Government policy is potentially an effective tool for addressing the childhood obesity epidemic through improvements in school physical activity and nutrition environments.     

A Framework for Widespread Replication of a Highly Spatially Resolved Childhood Lead Exposure Risk Model

Background

Preventive approaches to childhood lead poisoning are critical for addressing this longstanding environmental health concern. Moreover, increasing evidence of cognitive effects of blood lead levels < 10 μg/dL highlights the need for improved exposure prevention interventions.

Objectives

Geographic information system–based childhood lead exposure risk models, especially if executed at highly resolved spatial scales, can help identify children most at risk of lead exposure, as well as prioritize and direct housing and health-protective intervention programs. However, developing highly resolved spatial data requires labor-and time-intensive geocoding and analytical processes. In this study we evaluated the benefit of increased effort spent geocoding in terms of improved performance of lead exposure risk models.

Methods

We constructed three childhood lead exposure risk models based on established methods but using different levels of geocoded data from blood lead surveillance, county tax assessors, and the 2000 U.S. Census for 18 counties in North Carolina. We used the results to predict lead exposure risk levels mapped at the individual tax parcel unit.

Results

The models performed well enough to identify high-risk areas for targeted intervention, even with a relatively low level of effort on geocoding.

Conclusions

This study demonstrates the feasibility of widespread replication of highly spatially resolved childhood lead exposure risk models. The models guide resource-constrained local health and housing departments and community-based organizations on how best to expend their efforts in preventing and mitigating lead exposure risk in their communities.     

A Note on Obesity as Epidemic in Korea

Objective

To analyze the incidence of obesity in adults aged 19–59 years in Korea and predict its trend in the future.

Methods

We considered a two-compartmental deterministic mathematical model Susceptible-Infected-Susceptible (SIS), a system of difference equations, to predict the evolution of obesity in the population and to propose strategies to reduce its incidence.

Results

The prevention strategy on normal-weight individuals produced a greater improvement than that produced by treatment strategies.

Conclusions

Mathematical model sensitivity analysis suggests that obesity prevention strategies are more effective than obesity treatment strategies in controlling the increase of adult obesity in Korea.     

Vital Signs: Obesity Among Low-Income,Preschool-Aged Children — United States, 2008–2011

Background

The prevalence of obesity among U.S. preschoolers has doubled in recent decades. Childhood obesity increases the risk for adult obesity and is associated with negative health consequences. Trends in the state-specific prevalence of obesity among low-income U.S. preschool children have not been examined since 2008. State-specific obesity prevalence surveillance helps determine the need for and impact of state and local obesity prevention strategies.

Methods

Measured weight and height data from approximately 11.6 million low-income children aged 2–4 years from 40 states, the District of Columbia, and two U.S. territories who participated in the Pediatric Nutrition Surveillance System during 2008–2011 were used to estimate state obesity prevalence. Obesity was defined as having an age- and sex-specific body mass index ≥95th percentile, according to the 2000 CDC growth charts. Logistic regression models adjusted for age, sex, and race/ethnicity were used to examine trends in the state-specific obesity prevalence.

Results

During 2008–2011, statistically significant downward trends in obesity prevalence were observed in 18 states and the U.S. Virgin Islands. Florida, Georgia, Missouri, New Jersey, South Dakota, and the U.S. Virgin Islands had the largest absolute decreases in obesity prevalence, each with a decrease of ≥1 percentage point. Twenty states and Puerto Rico experienced no significant change, and obesity prevalence increased significantly in three states.

Conclusions and Implications for Public Health Practice

Small but significant declines in obesity among low-income preschoolers were observed in 19 of 43 states/territories examined. Continued prevention efforts are needed to sustain and expand the implementation and evaluation of population-level interventions to prevent childhood obesity.     

The Association between Maternal Smoking during Pregnancy and Childhood Obesity Persists to the Age of 9–10 Years

Background

We previously reported that a number of factors related to maternal lifestyle during early pregnancy, including smoking, are associated with childhood obesity at 5 years of age. In the present study, we investigated whether the association with maternal smoking persisted to the age of 9–10 years.

Methods

The study population comprised children born between April 1, 1991 and March 31, 1999, and their mothers. The dependent variables—childhood overweight and obesity at 5 and 9–10 years of age—were defined according to internationally acknowledged cut-off values. Maternal smoking during early pregnancy was used as the independent variable.

Results

Mothers who completed a specifically designed questionnaire gave birth to a total of 1644 infants during the study period. Anthropometric data were collected from 1302 of these children during medical checkups at 9–10 years of age (follow-up rate: 79.2%). Maternal smoking during early pregnancy was associated with obesity in 9- to 10-year-old children (adjusted odds ratio, 1.91; 95% confidence interval, 1.03–3.53). However, the point estimates at the age of 9–10 years were considerably lower than those at the age of 5 years.

Conclusions

Our results suggest that fetal environment, including exposure to maternal smoking, continues to be associated with childhood obesity at the age of 9–10 years.Key words: smoking, pregnancy, life styles, obesity, fetal programming